I've had an extension built, nearly done, electrics finished. Now fallen out with our idiotic builder who used his own electrician. So I need another electrician to Part P it so I can get the job signed off. Is this something that's allowed? Most electricians I've tried are very reluctant (understandably) to Part P someone else's work. However, as the build went on I have taken a lot of pictures which show the cable runs etc. and obviously we had a pre plaster check/approval from the planning. So is it not a case of a new electrician coming in, doing the necessary checks and tests and hopefully doing the Part P for us. Surely this scenario crops up, where an electrician might do the work and then disappears (or dies?!) and someone else will have to Part P. Planning may (and may not) allow us to have a periodic instead, what does this involve? Thanks.